IN American Dad Season 5 Ep 8 Circus, when Steven and friends are escaping from space camp?

As they're escaping there is a scene where Berry emerges from underground covered in mud, as he emerges he yells, then he pulls out Steve who is yelling, and the rest, then they all stand there in the rain and hold their arms up in the air and yell as rain and lightning is taking place in the background. What exactly is this referring to? I think it might be Terminator Salvation when Marcus Wright does virtually the same thing towards the beginning of the movie, but I am not sure.